1. Small, smooth stones or objects placed on the eye to remove dust, dirt, or foreign particles; historically used as a folk remedy.
Usage: Usually plural; archaic or historical usage; Also called eye stones or optrex stones in some regions

Examples

• In the 19th century, eyestones were a common household remedy for irritated eyes.
• The traveler carried eyestones in her bag to relieve discomfort from dust and sand.
• Eyestones were placed gently under the eyelid to soothe inflammation.
• Modern eye drops have largely replaced the use of eyestones.
• Historical medical texts describe the proper technique for using eyestones safely.